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Intel Pentium III 866 - RB80526PZ866256 (BX80526C866256 / BX80526C866256E)

CPU » Pentium III family » Pentium III (Coppermine) » RB80526PZ866256

CPU Information

General information
TypeCPU / Microprocessor
FamilyIntel Pentium III
CPU part numberRB80526PZ866256 (QAN4ES, QS82ES, QV42ES, SL43J, SL4CB, SL4ZJ, SL5DX)
Box part numbersBX80526C866256 (SL49H, SL4MD)
BX80526C866256E (SL43J, SL4ZJ, SL5DX)
Frequency (MHz)  ? 866
Bus speed (MHz)  ? 133
Clock multiplier  ? 6.5
Package370-pin Flip-Chip Pin Grid Array (FC-PGA)
1.95" x 1.95" (4.95 cm x 4.95 cm)
SocketSocket 370
Introduction dateMar 20, 2000
 
Architecture / Microarchitecture
Processor coreCoppermine
Core steppingscB0 (SL43J)
cC0 (SL4CB, SL4MD)
cD0 (SL4ZJ, SL5DX)
Manufacturing process0.18 micron
28 million transistors
Data width32 (64-bit data bus) bit
Floating Point UnitIntegrated
Level 1 cache size  ? 16 KB instruction cache
16 KB data cache
Level 2 cache size  ? Full-speed integrated 8-way set associative 256 KB
Features
  • MMX technology
  • SSE instructions
Low power features
  • AutoHALT state  ? 
  • Stop Grant state  ? 
  • Sleep state  ? 
  • Deep Sleep state  ? 
  • System Management Mode
 
Electrical/Thermal parameters
Min/Recommended/Max V core (V)1.57 / 1.65 / 1.69
1.62 / 1.7 / 1.74
1.67 / 1.75 / 1.79
Minimum/Maximum operating temperature (°C)  ? 0 - 80
Maximum power dissipation (W)  ? 27.71 (1.7V core)
30.8 (1.75V core)
 
Notes on Intel RB80526PZ866256
  • The processor is usually marked as 866/256/133/1.65V, 866/256/133/1.7V or 866/256/133/1.75V, where the last number specifies processor's core voltage. If the processor is marked with RB80526PZ866256 part number then use processor specification number to identify processor's core voltage

Pictures (3)

866/256/133/1.65V

866 MHz
133 MHz bus
370-pin flip-chip PGA		 Intel Pentium III 866 - RB80526PZ866256 (BX80526C866256 / BX80526C866256E)
866/256/133/1.7V

866 MHz
133 MHz bus
370-pin flip-chip PGA		 Intel Pentium III 866 - RB80526PZ866256 (BX80526C866256 / BX80526C866256E)
866/256/133/1.7V SL4MD
2010-01-24 02:04:40
Posted by: tac

866/256/133/1.7V SL4MD 		866/256/133/1.7V SL4MD
Add picture

Benchmarks

Tested processor
CPU ID:0683h
CPU vendor string:GenuineIntel
 
Motherboard Epox EP-693A (MS-DOS)
Dhrystone 2.1 (VAX MIPS)864.34
Doom 1.9s high detail (FPS)78.35
Doom 1.9s low detail (FPS)132.04
Linpack 100x100 (MFLOPS)337.36
Whetstone (KWIPS)472.45
 
Motherboard Epox EP-693A (Win98)
Sandra Dhrystone (MIPS)2973
Sandra MultiMedia Floating Point (it/s)8979
Sandra MultiMedia Integer (it/s)7555
Sandra Whetstone (MFLOPS)1156
 
Tested processor
CPU ID:0686h
CPU vendor string:GenuineIntel
 
Motherboard Epox EP-693A (MS-DOS)
Dhrystone 2.1 (VAX MIPS)863.21
Doom 1.9s high detail (FPS)78.32
Doom 1.9s low detail (FPS)132.19
Linpack 100x100 (MFLOPS)336.8
Whetstone (KWIPS)472.67
 
Motherboard Epox EP-693A (Win98)
Sandra Dhrystone (MIPS)2973
Sandra MultiMedia Floating Point (it/s)8979
Sandra MultiMedia Integer (it/s)7552
Sandra Whetstone (MFLOPS)1156

CPU ID

NOTE: CPU ID information below was taken from one CPU and may include features that are not present in all different steppings of the Intel Pentium 3 866 CPU.

Manufacturer:Intel
Family:Pentium 3
Processor Number:866
Part number:RB80526PZ866256
S-Spec / Comment:SL4ZJ
Submitted by:Neon
General information
Vendor:GenuineIntel
Processor type:Original OEM Processor
CPUID signature:68A
Family: 6 (06h)
Model: 8 (08h)
Stepping:10 (0Ah)
TLB/Cache details:Data TLB: 4-KB Pages, 4-way set associative, 64 entries
Data TLB: 4-MB Pages, 4-way set associative, 8 entries
Instruction TLB: 4-KB Pages, 4-way set associative, 32 entries
Instruction TLB: 4-MB Pages, fully associative, 2 entries

Cache: L1 data L1 instruction L2
Size: 16 KB 16 KB 256 KB
Associativity: 4-way set
associative		 4-way set
associative		 8-way set
associative
Line size: 32 bytes 32 bytes 32 bytes
 
Instruction set extensionsAdditonal instructions
MMX CMOV
SSE CMPXCHG8B
  FXSAVE/FXRSTORE
  SYSENTER/SYSEXIT
 
Major featuresOther features
On-chip Floating Point Unit 36-bit page-size extensions
  Debugging extensions
  Machine check architecture
  Machine check exception
  Memory-type range registers
  Model-specific registers
  Page attribute table
  Page global extension
  Page-size extensions (4MB pages)
  Physical address extensions
  Processor serial number
  Time stamp counter
  Virtual 8086-mode enhancements

Comments (4)

Still a pretty good processor

2009-01-10 20:15:36
Posted by: D

I Have a Windows 2000 Server Box That runs one of these. Pretty good for a "Vintage" Processor. Due to the fact this is a server (In which I keep and play most of My Media from.) I doesn't miss a beat keeping up to the network traffic I can subject this processor to. It never seems to slow or stagger. I have tried a Celeron 1.1 Ghz in this server and had some problems (Even though the clock speed is faster.) Over all I think this is a still viable processor to use for some purposes. While not the fastest in the world (even as Pentium III Coppermines go.)but I can always recommend the "Coppermine" Versions of the Pentium III still as a "Lower cost" solution.

Linux

2008-12-02 15:24:06
Posted by: TCTrad

I have this CPU in a compaq box with OpenSuse 10.2. Runs like hell! Very good CPU.

Linux

P-III 733

2007-04-21 02:54:36
Posted by: R. G. Findlay

I have a processor almost the same, only 733MHz, and it does run well... I can always recommend the P3 PGA Chips

Still useful

2006-11-03 08:09:24
Posted by: Jamie

I have one of these in my internet connection sharing host PC.

Despite being a bit out of date and below 1GHz, it's still pretty good (running WinXP Pro).

While out of date, if you have one and can use it, make use of it. They're still good for many things.

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Last modified: 23 Feb 2010
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